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N .GIGURNEY PROCESS APPARATUS.

No. 296,285. l Patented Apr. 1, 1884.

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y STATES ArnNr raies..

NATHAN G. GUR-NEY, F BALTLMORE, MARYLAND, ASSIGNOR 0F ONE-HALF TO FBAXCIS CLARK, OF SAME PLACE.

PROCESS APPARATUS.

SPECIFICATION forming part of Letters Patent No. 296,285, dated April l, 1884.

Application filed March d, 1883. (No model.)

To [LZ uffi/mn, t may concern:

Beit known that I, NATHAN G. GURNEY, a citizen ofthe United States, residingat Baltimore, Maryland,have invented new and useful Improvements in Process Apparatus, of

which the following is a specification.

My invention relates to a class of heatingkettles,known technically in the art as process-kettles, and the novelty consists in the io construction and arrangement of parts, as will be more particularlyhereinafter set forth, and specifically pointed ont in the claims.

The object ofthe invention, in cooking and treating canned fruit, vegetables, ish, and

x5 other edibles, is to provide a kettle or vessel adapted to receive the cans to be treated, Which vessel shall have steam-connections with a suitable generator, and means for automatically relieving the pressure when it reaches a prezc determined point, means` for preventing condensation of steam in such vessel, and of vaporizing any such condensation as may have occurred, and means for maintaining any desired degree of heat in the vessel after the steam-supply has been out off; and to these ends the invention consists, essentially, in the mechanisms and combinations of mechanisms fully illustrated in the accompanying .drawings, which form a part of this specification, 3o and in Which- Figure 1 is a vertical transverse section, and Fig. 2 a vertical central section taken at right angles thereto. Fig. 3 is a sectional view, showing a modification.

Referring to the drawings, in which similar letters of reference indicate like parts in both the figures, A designates a horizontal tubular boiler of any approved and suitable construe tion and capacity, and A a furnace for heating the same. Secured properly, `by bolts or rivets,to make a steam-tightj oint,to this boilerl is a vertical cylinder, B, having open connection with thesteam-space above the Wat-erlevel in said boiler A. By proper flanges upon a cylindrical vessel, O, said vessel is supported or suspended or otherwise secured Within the cylinder B, and this vessel is adapted to receive and hold the cans while being treated. The vessel C is of such smaller diameter than 5o the cylinder B as to form an annular space,

M, as shown, which space connects with the steam-space in the boiler A.

The flanges by means of which the cylinders B and C are connected are so arranged and constructed as to form a steam-tight joint, and also to form a seat for the bearings of a removable cover, C', which is secured to its said seat'by bolts c, proper packing being interposed to form a steam-tight joint at this point. rlhe means for holding this cover to its seat are such as to allow the ready removal of the cover for the insertion of the cans.

A horizontal pipe, E, is connected with the bottom of the vessel C, and provided with a vertical branch, E', the upper end of which is connected with the upper portion of the cylinder B, to establish communication between the annular space M and the interior of the vessel C, at the bottom thereof, such coininunication being` controlled by a valve, F, in the vertical branch E. At a point between this vertical branch and the outer end of the. pipe' E is arranged a blowpft cock, G. 'When the cans are in proper position within the vessel C and the cock F is opened, the steam will pass from the annular space M through the vertical branch E and pipe E into the bottom ofthe said vessel. Y

D indicates a pipe leading from the interior of the vessel C to a point outside the cylinder B, to which a safety-valve, D', is attached. As different degrees of pressure may be required Within the vesselfO, I provide an adjusting device, D, which may be set at any predetermined point, so that it will vresist the pressure up to such predetermined point,when the valve will open and relieve the vessel C. A similar device, I, is attached to the pipe E, near its connection i with the steam-space M, and a pipe, H, connected with such space M, carries a `steam-gage, h., to denote the pressure in the said space and boiler.

When the proper pressure of steam in the vessel C is attained, such live steam having v been admitted from the boiler A through the pipe E, the valve F is closed. The amount of 'heat from the boiler is sufficient to vaporize into steam any water of condensation in the bottom of the vessel G, and to prevent further condensation. 10o

vIO

i in the vessel C a newlot of cans to be treated,

turn the-valve F until a proper amount of steam has been injected, then shut off the valve F, the other steps in the process being automatic.

Vhen for any reason.it becomes necessary to blow off the vessel C, to remove sediment, for instance, the valve G may be opened for that purpose.

Modications in details of construction may be made without departing from the principle or sacrificing the advantages of my invention, the essential features of which will be readily understood from the `foregoing description, taken in connection with the drawings. For instance, the vessel C may be also secured to the cylinder B at the lower junction with the boiler, or at any intermediate point, by aperforated annular metal ring; and in case' the aperture formed by the connection with the cylinder and boiler should seriously weaken that p art of the boiler, both the cylinders B and O may be bolted to the boiler, and the portion of the said boilerbetween the j unctures ofthe cylinders may be perforated, the other features remaining substantially as shown.

Having thus described my invention, what l 1. In a processing apparatus a jacketed kettle having a connection with a steam-generator and surrounded by a steam-space having open connection with said steam-generator, and' means for automatically relieving pressure within said kettle when a predetermined point of pressure has been reached, as set forth.

2. In a process apparatus, the combination, with a steam-boiler, of a vertical cylinder having its lower open end in direct communication with the steam-space of the boiler, and secured to the boiler-casing by a steam-tight joint, a can receiving and supporting vessel secured within the cylinder by iianges,to form a seat for the removable cover, and a steamsupply pipe for delivering steam into the vessel,upon the cans therein, substantially as described. y

3. rIna processingapparatus,and in combination with the boiler A, jacketed kettle and cover, as described, a steam-pipe, E, connecting with the interior of the vessel or kettle, and having a branch, E', connecting with the steam-space exterior to the said kettle, and with proper valves, as and for the purposes set forth.

In testimony whereoin I havehereunto set my hand in the presence of two subscribing witnesses.

NATHAN G. GURNEY.

Witnesses:

W. S. WILKrNsoN, J As. HENDERSON. 

